Fastening device for antenna



FIG. 1 is a top front perspective view of a fastening device for antenna according to the present invention;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a fastening device for antenna, as shown and described. 